Covariance of sutural complexity with whorl shape: evidence from intraspecific analyses of the Cretaceous ammonoid Desmoceras

Swiss Journal of Palaeontology

Table 2 Summary of measurements

	Shell diameter (mm)	Number of specimen	Mean	Max.	Min.	SD
D. latidorsatum forma complanata
ISC	15	13	8.03	9.24	7.01	0.60
	20	14	8.77	10.25	7.83	0.71
	25	18	9.90	11.60	8.99	0.73
	30	15	10.25	11.36	8.74	0.75
B/H	15	13	0.88	0.94	0.83	0.03
	20	14	0.85	0.90	0.80	0.03
	25	18	0.83	0.87	0.76	0.03
	30	15	0.82	0.87	0.76	0.03
ST_center	15	13	0.96	1.07	0.81	0.07
	20	14	0.94	1.09	0.84	0.08
	25	18	0.97	1.10	0.88	0.07
	30	15	1.00	1.34	0.84	0.12
ST_neck	15	13	0.46	0.54	0.38	0.06
	20	14	0.46	0.55	0.36	0.06
	25	18	0.50	0.64	0.41	0.07
	30	14	0.57	1.00	0.46	0.13
D. latidorsatum forma media
ISC	15	37	8.23	10.02	6.84	0.78
	20	52	9.04	10.57	7.12	0.76
	25	56	9.93	12.03	8.15	0.84
	30	37	10.55	12.30	8.68	0.89
B/H	15	37	1.08	1.21	1.01	0.05
	20	52	1.05	1.23	0.96	0.06
	25	56	1.07	1.19	0.96	0.05
	30	37	1.08	1.24	0.99	0.05
ST_center	15	37	0.90	1.05	0.79	0.06
	20	52	0.93	1.08	0.79	0.07
	25	56	0.92	1.10	0.78	0.07
	30	36	0.92	1.49	0.74	0.14
ST_neck	15	37	0.54	0.65	0.41	0.06
	20	52	0.57	0.80	0.44	0.07
	25	56	0.58	0.93	0.46	0.08
	30	36	0.58	0.79	0.47	0.08
D. latidorsatum forma inflata
ISC	15	5	7.87	8.59	7.41	0.46
	20	5	8.51	9.54	8.15	0.58
	25	5	9.90	10.90	9.40	0.59
	30	5	10.76	12.74	9.91	1.16
B/H	15	5	1.48	1.75	1.28	0.18
	20	5	1.40	1.55	1.23	0.11
	25	5	1.29	1.37	1.20	0.07
	30	5	1.29	1.41	1.21	0.08
ST_center	15	4	0.78	0.82	0.72	0.04
	20	5	0.79	0.85	0.76	0.04
	25	5	0.76	0.82	0.72	0.04
	30	4	0.75	0.78	0.66	0.06
ST_neck	15	4	0.64	0.69	0.60	0.04
	20	5	0.62	0.81	0.54	0.11
	25	5	0.58	0.62	0.54	0.03
	30	4	0.52	0.59	0.42	0.07